1321024111421 has 8 divisors (see below), whose sum is σ = 1509750036480. Its totient is φ = 1132300235088.

The previous prime is 1321024111417. The next prime is 1321024111489. The reversal of 1321024111421 is 1241114201231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1321024111421 - 2² = 1321024111417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321024111411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294340 + ... + 2077826.

It is an arithmetic number, because the mean of its divisors is an integer number (188718754560).

Almost surely, 2^{1321024111421} is an apocalyptic number.

It is an amenable number.

1321024111421 is a deficient number, since it is larger than the sum of its proper divisors (188725925059).

1321024111421 is an equidigital number, since it uses as much as digits as its factorization.

1321024111421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024363.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 1321024111421 its reverse (1241114201231), we get a palindrome (2562138312652).

The spelling of 1321024111421 in words is "one trillion, three hundred twenty-one billion, twenty-four million, one hundred eleven thousand, four hundred twenty-one".